package arithmetic.socket.netty.websocket;

import java.time.LocalDateTime;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;

/**
 * @author jiangfeng
 * Created on 2020-03-05
 * ChannelInboundHandlerAdapter
 */
public class WebSocketHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {


    @Override
    protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
        System.out.println("收到消息:"+msg.text());
        ctx.writeAndFlush(new TextWebSocketFrame("服务器时间:"+ LocalDateTime.now()));
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println(ctx.channel()+"handlerRemoved");
        super.handlerRemoved(ctx);
    }

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        System.out.println(ctx.channel()+"handlerAdded");
        super.handlerAdded(ctx);
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("异常发生");
        cause.printStackTrace();
        ctx.close();
    }


}
